Frequently Asked Questions

What does it mean when the check engine light comes on in a 2025 BMW X5?

• It signals an emissions or engine management issue detected by the vehicle’s onboard computer. Codes range from minor (loose filler cap) to more serious faults (oxygen sensor, ignition coils, or catalytic converter).
• At Nalley BMW of Decatur our certified BMW technicians use factory diagnostic tools to identify the exact code and next steps quickly and accurately.
• Addressing codes early at our dealership often costs less overall than delaying repairs—preventing secondary damage and preserving long-term value.
• Repairs covered under warranty must be performed at a certified dealership to maintain coverage and ensure OEM parts and proper documentation.
• Ready to act? You can schedule service online and review current service specials to save on repairs.

How long does a check engine light service take?

• Most diagnostics are completed within an hour; follow-up repairs vary—simple fixes can be same-day, while parts-intensive repairs may take longer.
• Nalley BMW of Decatur emphasizes quick turnaround with transparent estimates, OEM parts availability, and prioritized scheduling when needed.
• We offer service financing so you can get service now and pay later, delivering immediate safety and long-term savings by preventing further damage.
• To minimize downtime, schedule appointment online and check our service specials before you come in.

How much does a check engine light diagnostic cost for a 2025 BMW X5?

• Diagnostic pricing can vary by issue; our current diagnostic fee typically starts around $99.75 for code scanning and professional analysis.
• Nalley BMW of Decatur often costs less than independent shops when you factor in accurate diagnosis, OEM parts, and preventing unnecessary repairs—producing immediate and long-term savings.
• We provide a clear estimate before any work starts and honor factory warranties; remember warranty repairs must be performed at a certified dealership to remain valid.
• Take advantage of our service specials or schedule service to learn about financing options and estimated total cost.

What is the most common reason for check engine light on a 2025 BMW X5?

• Common triggers include a loose or damaged gas cap, failing oxygen sensors, ignition coil or spark plug issues, and mass airflow sensor faults.
• Ignoring these can lead to reduced fuel economy, engine damage, or emissions failures—costing more later than a timely dealer repair.
• Our technicians at Nalley BMW of Decatur diagnose with precision and recommend OEM repairs to restore performance and protect resale value.
• Use our online tools to schedule service and review available service specials to lower out-of-pocket expense.

What is the first thing to check when the check engine light comes on?

• Start with basics: ensure the gas cap is tight and in good condition. If the light persists, a professional scan is the next step.
• Nalley BMW of Decatur uses BMW-specific diagnostics to pinpoint codes and recommend precise repairs—saving time and money versus guesswork.
• We back repairs with OEM parts and certified technicians; any warranty-covered work must be completed at a certified dealership to remain valid.
• When you’re ready, schedule service online and check our service specials for current savings. Service financing is available so you can get repairs now and pay over time.